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61篇 您的检索式:作者名="P.van"
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1大别造山带磷灰石裂变径迹(AFT)年代学研究显示文摘大别山花岗岩与变质岩的AFT热年代分布于96.4~41.9Ma之间,围限径迹长度为11.5~14.0μm.热年代代表岩石差异通过100℃等温面时的冷却时代,这种差异性主要受控于NNE向区域构造,在北淮阳与合肥盆地,沉积岩样品(侏罗纪~早第三纪)AFT年代为128.8~62.0Ma,围限径迹长度为8.6~11.9μm,它们更多反映盆地埋藏加热的信息,合肥盆地与大别造山带之间存在构造耦合关系,95~90Ma属于大别山构造推隆取代伸展热窿的转折期,其成因可能与西太平洋域汇聚变化特性有关:商城-麻城与郯-庐两断裂之间左旋差异走滑与构造推隆作用,使得大别腹地伸展热窿在晚白垩世急剧萎缩.早第三纪时期,受西太平洋域汇聚速率急剧下降的影响,欧亚东缘表现出广泛的拉张环境,大别山60~40Ma带状热异常应与这种拉张作用有关;郯-庐热中心的冷却(70~40Ma)要比商城-麻城热中心(60~55Ma)缓慢,而大别腹地热隆区(60~40Ma)属于伸展热窿萎缩之残留.大别山早第三纪还遭受喜马拉雅山碰撞域的远场影响,这种影响多通过NWW向断裂来实现构造传递:进入渐新世一中新世,大别山冷却波动仍显现区域差异性,它们在时间上与南海盆地扩张、关闭事件相近.许长海 周祖翼 P.Van Den Haute R.A.Donelick J.De Grave 马昌前 P.W.Reiners 2004中国科学(D辑)2004,34,7:27
2合肥盆地构造演化的磷灰石裂变径迹分析显示文摘磷灰石裂变径迹(AFT)分析表明,合肥盆地北部K2^1砂岩的AFT年龄为(128.2±95)Ma,围限径迹长度为(11.9±0.4)μm。其模拟热史包括4个阶段:在距今175~150Ma,冷却速率为8.92℃/Ma;在距今150~85Ma为0.99℃/Ma;在距今85~24Ma为-0.49℃/Ma;在距今24Ma以来为1.96℃/Ma,它们依次对应于物源区快速抬升剥露、缓慢抬升剥露以及盆地先沉降后抬升4个阶段。盆地南缘黑石渡组(K1h)的AFT年龄为(86.3±43)Ma,平均围限径迹长度为(13.6±0.2)μm。模拟热史表明,在距今135~122Ma时冷却速率为-13.60℃/Ma;在距今122~98Ma时为1.92℃/Ma;在距今98~90Ma时为6.63℃/Ma;在距今90~26Ma时为0.88℃/Ma;在距今26Ma以来为0.69℃/Ma,它们依次与沉积埋藏加热、缓慢抬升剥露、快速抬升剥露以及两次缓慢剥露5个阶段相对应。合肥盆地的演化先后受到大别造山带与郯庐断裂带构造活动的控制:即盆地挤压阶段(早侏罗世至距今150Ma)受控于大别山晚造山期挤压环境,盆地伸展断陷阶段(距今150~138Ma)受控于大别山造山根拆沉作用,盆地滑覆冲断一走滑阶段(距今138-90Ma)受控于造山带热窿伸展与郯庐断裂走滑联合作用,盆地走滑拉张阶段(距今90~25Ma)受控于郯庐断裂带走滑拉张作用,盆地挤压抬升阶段(距今25Ma以来)受控于郯庐断裂带挤压环境。许长海 周祖翼 P.Van Den Haute J.L.Mansy 杨风丽 2006石油学报2006,27,6:20
3Ecohydrological advances and applications in plant–water relations research:a review显示文摘Aims The field of ecohydrology is providing new theoretical frameworks and methodological approaches for understanding the complex interactions and feedbacks between vegetation and hydrologic flows at multiple scales.Here we review some of the major scientific and technological advances in ecohydrology as related to understanding the mechanisms by which plant–water relations influence water fluxes at ecosystem,watershed and landscape scales.Important Findings We identify several cross-cutting themes related to the role of plant–water relations in the ecohydrological literature,including the contrasting dynamics of water-limited and water-abundant ecosystems,transferring information about water fluxes across scales,understanding spatiotemporal heterogeneity and complexity,ecohydrological triggers associated with threshold behavior and shifts between alternative stable states and the need for long-term data sets at multiple scales.We then show how these themes are embedded within three key research areas where improved understanding of the linkages between plant–water relations and the hydrologic cycle have led to important advances in the field of ecohydrology:upscaling water fluxes from the leaf to the watershed and landscape,effects of plant–soil interactions on soil moisture dynamics and controls exerted by plant water use patterns and mechanisms on streamflow regime.In particular,we highlight several pressing environmental challenges facing society today where ecohydrology can contribute to the scientific knowledge for developing sound management and policy solutions.We conclude by identifying key challenges and opportunities for advancing contributions of plant–water relations research to ecohydrology in the future.Heidi Asbjornsen Gregory R.Goldsmith Maria S.Alvarado-Barrientos Karin Rebel Floortje P.Van Osch Max Rietkerk Jiquan Chen Sybil Gotsch Conrado Tobon Daniel R.Geissert Alberto Gomez-Tagle Kellie Vache Todd E.Dawson 2011Journal of Plant Ecology2011,4,1:15
4酸制剂对黑麦草青贮饲料发酵品质和微生物菌群的影响显示文摘以多年生黑麦草为试验材料 ,通过添加甲酸或硫酸以检测酸制剂对青贮饲料发酵过程中干物质损失、酸度变化、微生物菌群变化及发酵品质的影响 .青贮发酵试验用 1L魏氏 (Weck)玻璃发酵罐进行 ,青贮期为 10 6d .结果表明 ,添加甲酸或硫酸可明显抑制正常的乳酸发酵 ,使发酵产物的浓度降低 ,且随甲酸或硫酸添加量的增加抑制增强 .管武太 F.DRIEHUIS P.van WIKSELAAR 2002华南农业大学学报2002,23,1:8
5采用3D影像融合CT全肝容积灌注成像提高肝转移瘤的检出和特征显示显示文摘评价CT全肝容积灌注技术对肝转移瘤的检出及显示转移瘤特征的可行性。对20例病人进行平扫及静脉注射对比剂后的11次全肝容积螺旋CT扫描。M.R.Meijerink J.H.T.M.van Waesberghe L.van der Weide P.van den Tol S.Meijer C.van Kuijk 胡涛 2008国际医学放射学杂志2008,31,A06:8
6Primary sclerosing cholangitis: Updates in diagnosis and therapy显示文摘Primary sclerosing cholangitis (PSC) is a chronic cholestatic syndrome of unknown origin mostly found in males, and characterized by diffuse inflammation and fibrosis of both intra- and extra-hepatic bile ducts. So far, PSC is considered as an autoimmune hepatobiliary disease. In most cases the progression of PSC towards liver cirrhosis and liver failure is slow but irreversible, and liver transplantation is currently the only definitive treatment. In recent years,PSC has been an area of active research worldwide with great interest in etiology, pathogenesis, diagnosis, and therapeutic options such as hydrophilic ursodeoxycholic acid and immunosuppressive agent tacrolimus. Recent updates on clinical and therapeutic aspects of PSC are discussed in the present review.Piero Portincasa Michele Vacca Antonio Moschetta Michele Petruzzelli Giuseppe Palasciano Karel J.van Erpecum Gerard P.van Berge-Henegouwen 2005World Journal of Gastroenterology2005,11,1:7
7Design and development of large-scale in-situ PRACLAY heater test and horizontal high-level radioactive waste disposal gallery seal test in Belgian HADES显示文摘In Belgium,the Boom clay was selected as a potential host formation for the disposal of high-level radioactive waste(HLW).To demonstrate the suitability of Boom clay for bearing thermal load induced by the HLW,a large-scale in-situ heater test,called PRACLAY heater test,will be conducted in the underground research laboratory(URL) in Mol.Owing to the limitations of the test(a short period of time compared with that considered in a real repository,different boundary conditions,etc.),the test is designed to simulate,in a conservative way,the most critical state and phenomena that could occur in the host rock.The PRACLAY gallery was excavated at the end of 2007;the heating phase will begin in 2010 and will last for at least 10 years.The PRACLAY gallery itself leaves an opportunity to study the possibilities of sealing a disposal drift in Boom clay and testing the feasibility of hydraulic cut-off of any preferential pathway to the main access gallery through the excavation damage zone(EDZ) and the lining with a seal in a horizontal drift(horizontal seal).Indeed,this is a generic problem for all deep geological disposal facilities for HLW.An annular seal made of compacted swelling bentonite will be installed in the front of the heated part of the PRACLAY gallery for these purposes.This paper provides detailed considerations on the thermo-hydro-mechanical(THM) boundary conditions for the design of the PRACLAY heater test and the seal test with the support of numerical calculations.It is believed that these important items considered in the PRACLAY heater test design also constitute key issues for the repository design.The outcome of the PRACLAY heater test will be an important milestone for the Belgian repository design.X.L.Li W.Bastiaens P.Van Marcke J.Verstricht G.J.Chen E.Weetjens 2010Journal of Rock Mechanics and Geotechnical Engineering2010,2,2:6
8A revised nomenclature for allergy: An EAACI position statement from the EAACI nomenclature task force显示文摘S. G. O.Johansson J.O’BHourihane J.Bousquet C.Bruijnzeel‐Koomen S.Dreborg T.Haahtela M. L.Kowalski N.Mygind J.Ring P.Van Cauwenberge M.Van Hage‐Hamsten B.Wüthrich 2008Allergy2008,,9:2
9热轧和焊接不锈钢结构构件的强度计算显示文摘目前世界上还没有国家制订关于热轧和焊接不锈钢结构的设计规范。随着不锈钢构件在建筑结构中的运用 ,以及它们表现出与普通碳素钢和低合金钢构件不同的力学性能 ,必须考虑专门的设计方法。在南非兰德大学铬钢研究组对热轧和焊接不锈钢构件研究的基础上 ,提出了用于热轧和焊接不锈钢结构构件强度预估的理论计算公式 。P.Van Der Merwe 梁爱华 R.F.Laubscher 2001钢结构2001,16,4:2
10Similar liver transplantation survival with selected cardiac death donors and brain death donors显示文摘J.Dubbeld H.Hoekstra W.Farid J.Ringers R. J.Porte H. J.Metselaar A. G.Baranski G.Kazemier A. P.van den Berg B.van Hoek 2010Br J Surg2010,,5:2
11专家系统遇到了麻烦?显示文摘Reind P.van de Riet 周立柱 1987计算机科学1987,,02:1
12The contribution of N2O to the greenhouse gas balance of first‐generation biofuels显示文摘EDWARD M.W.SMEETS LEX F.BOUWMAN ELKESTEHFEST DETLEF P.VAN VUUREN ADAMPOSTHUMA 2010Global Change Biology2010,,8:1
13Do European employers support later retirement显示文摘Hendrik P.van Dalen Kene Henkens Wilma Henderikse Joop Schippers 0,,03:1
14A Cross-national Perspective on Youth Environmental Attitudes显示文摘Boeve-de Pauw J P.Van Petegem 0,,02:1
15Inflammatory Bowel Disease After Liver Transplantation: Risk Factors for Recurrence and De Novo Disease显示文摘R. C.Verdonk G.Dijkstra E. B.Haagsma V. K.Shostrom A. P.Van den Berg J. H.Kleibeuker A. N.Langnas D. L.Sudan 2006American Journal of Transplantation2006,,6:1
16Breath Biopsy^(®) to Identify Exhaled Volatile Organic Compounds Biomarkers for Liver Cirrhosis Detection显示文摘Background and Aims:The prevalence of chronic liver dis-ease in adults exceeds 30%in some countries and there is significant interest in developing tests and treatments to help control disease progression and reduce healthcare burden.Breath is a rich sampling matrix that offers non-invasive so-lutions suitable for early-stage detection and disease moni-toring.Having previously investigated targeted analysis of a single biomarker,here we investigated a multiparametric approach to breath testing that would provide more robust and reliable results for clinical use.Methods:To identify can-didate biomarkers we compared 46 breath samples from cir-rhosis patients and 42 from controls.Collection and analysis used Breath Biopsy OMNI™,maximizing signal and contrast to background to provide high confidence biomarker detec-tion based upon gas chromatography mass spectrometry(GC-MS).Blank samples were also analyzed to provide de-tailed information on background volatile organic compounds(VOCs)levels.Results:A set of 29 breath VOCs differed significantly between cirrhosis and controls.A classification model based on these VOCs had an area under the curve(AUC)of 0.95±0.04 in cross-validated test sets.The seven best performing VOCs were sufficient to maximize classifica-tion performance.A subset of 11 VOCs was correlated with blood metrics of liver function(bilirubin,albumin,prothrom-bin time)and separated patients by cirrhosis severity using principal component analysis.Conclusions:A set of seven VOCs consisting of previously reported and novel candidates show promise as a panel for liver disease detection and mon-itoring,showing correlation to disease severity and serum biomarkers at late stage.Giuseppe Ferrandino Giovanna De Palo Antonio Murgia Owen Birch Ahmed Tawfike Rob Smith Irene Debiram-Beecham Olga Gandelman Graham Kibble Anne Marie Lydon Alice Groves Agnieszka Smolinska Max Allsworth Billy Boyle Marc P.van der Schee Michael Allison Rebecca C.Fitzgerald Matthew Hoare Victoria K.Snowdon 2023Journal of Clinical and Translational Hepatology2023,11,3:1
17FIRST‐TRIMESTER SONOGRAPHY OF PHYSIOLOGICAL MIDGUT HERNIATION AND EARLY DIAGNOSIS OF OMPHALOCELE显示文摘R. M.VAN ZALEN‐SPROCK J. M. G.VAN VUGT H. P.VAN GEIJN 1998Prenat Diagn1998,,6:1
18Sustainability analysis of two participatory watershed projects in Kerala显示文摘Vishnudas S H.G.Hubert G.Savenije P.Van der Zaag C.E.A.Kumar K.R.Anil 0,,1:1
19九价人乳头瘤病毒疫苗在曾接种四价疫苗人群中的安全性评价显示文摘美国默克公司新研发的九价人乳头瘤病毒(HPV)疫苗除可保护接种者免受四价疫苗所覆盖的4种HPV型别(HPV6、11、16、18)感染外,还可以保护接种者免受5种与宫颈癌密切相关的致癌型别的(HPV31、33、45、52、58)感染。既往曾汇总分析过来自7项Ⅲ期临床研究的安全性数据,结果表明九价疫苗在9~26岁人群中耐受性良好。与四价疫苗相比,九价疫苗的注射部位不良事件更常见。E.D.Moreira A.R.Giuliano J.de Hoon O.-E.Iversen E.A.Joura J.Restrepo P.Van Damme C.Vandermeulen M.C.Ellison A.Krick C.Shields B.Heiles A.Luxembourg 孙美萍 2018中国病毒病杂志2018,8,4:1
20A global model for residential energy use:Uncertainty in calibrationto regional data显示文摘Bas van Ruijven Bert de Vries Detlef P. van Vuuren Jeroen P.van der Sluijs 0,,:1
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